News archive

News archive

The first Sino-European satellite completes its mission
After successfully completing its operational lifetime, including two mission extensions, the Double Star mission's TC-1 satellite has re-entered Earth's atmosphere nearly four years after its launch
Published: 16 October 2007
Cluster and Double Star pinpoint the source of bright aurorae
Combined observations from the Cluster and Double Star missions have resulted in the discovery of a new type of onset for a magnetospheric phenomenon that induces bright aurorae: the magnetic substorm.
Published: 11 September 2007
Double Star Mission Extension
On 8 November 2006, ESA's Science Programme Committee has approved a 9 months extension of ESA involvement in the Double Star Programme (DSP) operations from 1 January 2007 to 30 September 2007.
Published: 9 November 2006
Double Star and Cluster witness pulsated reconnection for several hours
Using coordinated observations of the CNSA/ESA Double Star and ESA/NASA Cluster missions, a team of European and US scientists reveals new features of magnetic reconnection at the Earth's magnetopause. These results improve our knowledge on how, where and under which conditions the solar wind manages to penetrate the Earth's magnetic shield on the flank of the magnetosphere.
Published: 3 October 2006
Cluster and Double Star discover density holes in the solar wind
Based on recent observations by the Cluster and the Double Star TC-1 satellites, a team of American, European and Chinese scientists have discovered the presence of ion density holes in the solar wind, upstream of the Earth's bow shock, of thousands kilometers in size. More than 140 of such density holes were found, always observed with upstream particles (propagating against the solar wind flow), suggesting that backstreaming energetic particles interacting with the solar wind are important.
Published: 20 June 2006
Cluster and Double Star reveal the extent of neutral sheet oscillations
Published 8 November 2005 in Annales Geophysicae, an article by Zhang et al. presents the first ever simultaneous observation of neutral sheet oscillations, giving a more global view of this phenomenon than previously possible.
Published: 30 March 2006
Double Star and Cluster observe first evidence of crustal cracking
On 27 December 2004, radiation from the biggest starquake on a neutron star ever recorded reached Earth. Unique data obtained by Double Star TC-2 and Cluster satellites enabled a group of European scientists to find the first observational evidence of cracks in the neutron star crust, during the initial phase of the starquake. This result, published 16 June 2005 in the Astrophysical Journal, dicriminates between current theories on the physical origin of such massive starquakes.
Published: 21 September 2005
Double Star mission extension approved by ESA

On 10 May 2005, the ESA Science Programme Committee approved the extension of the Double Star mission for a period of 17 months, pushing back the end date from July 2005 to December 2006.
Published: 12 May 2005
Report on Second Double Star - Cluster Workshop

On 8 November 2004, more than 70 scientists from China, Europe, Russia and USA gathered to discuss the first results of the Double Star mission that provide new insights in the Earth's magnetosphere.
Published: 22 November 2004
First Data from the Double Star Mission Accessible Online
We are happy to announce that the first data from the Double Star missionare accessible on line.The Double Star Science Data System (DSDS) is an integral part of theDouble Star Mission to the Earth's magnetosphere.
Published: 13 August 2004
Second Double Star satellite successfully launched
At 07:05 UT (15:05 local time) 25 July 2004, the Chinese National Space Administration (CNSA) successfully launched TC-2, the second of two scientific satellites known as Double Star.
Published: 26 July 2004
First Double Star Satellite Launched
On 29th December the Chinese National Space Administration (CNSA) successfully launched TC-1, the first of two scientific satellites known as Double Star on a Long March 2C launcher.
Published: 29 December 2003
Postponed launch for "TC-1" (Double Star-1)
During the general inspection process for the Long March 2 C-SM launcher, a malfunction appeared in the detach mechanism for the launcher's solid booster, which required to be replaced. The unit was exchanged and the system successfully tested. The S/C has been mated with the upper stage engine on the evening of 23 December, and the composite has been enclosed in the fairing again. The composite has been re-installed on the top of the rocket in the morning of Dec 24 and a Flight Simulation Test (FST) with all scientific payload has been completed in the afternoon. This test has been supported by all European Experimenters, who had to interrupt their family preparations for Christmas Eve. Using Internet Messenger and on-line data distribution, the FGM PI being available from South Africa, all PIs confirmed the proper functioning of the scientific instruments and the successful completion of the FST. The spacecraft and launcher are now ready for launch. The launch will take place on 29 December 19:06 UT.
Published: 25 December 2003
Double Star ready for shipment to launch pad
Double Star ready for shipment to launch pad
Published: 21 November 2003
Double Star announcement of opportunity for the Double Star mission
The European Space Agency solicits the scientific community to further increase the scientific return of the Double Star programme.
Published: 23 June 2003
Chinese satellites meet European instruments in London for space mission pre-nuptials
The hardware inside a Chinese space satellite is currently undergoing its final tests in London to make sure that it can 'talk' with the European science instruments it will be carrying, in advance of its mission launch in 2003.
Published: 11 October 2002
Double Star update for European scientists
Important steps towards the realisation of a unique East-West collaboration were taken during a recent visit to Beijing by European scientists and engineers. During the week of 10-14 September, representatives from ESA and 10 European instrument teams took the opportunity to renew acquaintance with engineers working on the Double Star mission.
Published: 27 September 2001
East meets West on 'Double Star', a joint mission to explore Earth's magnetic field
A new phase in ESA-China scientific collaboration was officially given the green light today at ESA Headquarters in Paris with an historic agreement between ESA and the Chinese National Space Administration (CNSA) to develop a joint project known as 'Double Star'.
Published: 9 July 2001
European delegation to China discusses
An exciting new East-West scientific collaboration recently took a further step towards acceptance when a group of European Space Agency delegates and space scientists travelled to Beijing to meet their Chinese counterparts.
Published: 19 April 2001
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